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X. Li

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X. Xu

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X. Li Chinese Academy of Agricultural Sciences The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences Beijing 100081 China

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X. Yang Chinese Academy of Agricultural Sciences The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences Beijing 100081 China

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W. Liu Chinese Academy of Agricultural Sciences The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences Beijing 100081 China

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L. Li Chinese Academy of Agricultural Sciences The National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences Beijing 100081 China

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A reborn interest has occurred during the last decade toward wheat landraces for broadening genetic basis of modern wheat cultivars. The investigation of molecular traits within and between existing landraces of wheat can help scientists to develop appropriate strategies for their efficient maintenance and exploitation. The present study dealt with the gliadin characterization of forty-seven wheat landraces collected from wheat mainly planted areas of China, each of which was represented by a sample of at least 43 individuals. Twelve accessions selected on the basis of gliadin analysis were investigated further using 21 SSR markers. The results proved that landraces of wheat are a mixture of variable individuals genetically distinguishable from each other. Twelve of the analyzed 47 accessions were observed to be homogeneous, while 35 (74.5%) of them were heterogeneous in their gliadin composition. In total, 122 gliadin pattern were observed. On average, 10.1% (Gst) of the total variation arose from differentiation among regions, and 89.9% was attributed to within-region variation. Furthermore, nineteen of the 21 SSR markers were polymorphic across all the populations. The total number of the amplified DNA products was 110, with a mean of 6.11 alleles per locus. The values of genetic diversity within each landrace population varied from 0.006 to 0.351. Implications for the management of this valuable genetic resource are discussed.

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Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)